/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendDocumentBuilder.h
bool FindDeclaredInterfaces ( [TArray](API\Runtime\Core\Containers\TArray)< const [Metasound::Frontend::IInterfaceRegistryEntry](API\Plugins\MetasoundFrontend\Interfaces\IInterfaceRegistryEntry) * > & OutInterfaces ) const